CVE-2025-64100 json
CKAN Vulnerable to Session Cookie Fixation
published 2025-10-29 12 mo ago modified 2026-10-19 20 d ago also EUVD-2025-36700 , GHSA-2hvh-cw5c-8q8q , PYSEC-2026-1246
- cvss
- 6.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 22%
- public exploits
- 0
- none known
Summary
CKAN is an open-source DMS (data management system) for powering data hubs and data portals. Prior to 2.10.9 and 2.11.4, session ids could be fixed by an attacker if the site is configured with server-side session storage (CKAN uses cookie-based session storage by default). The attacker would need to either set a cookie on the victim's browser or steal the victim's currently valid session. Session identifiers are now regenerated after each login. This vulnerability has been fixed in CKAN 2.10.9 and 2.11.4
Patch / fix
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 12 mo ago
Exploit prediction
0.30% chance of exploitation in the next 30 days, higher than 22% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N |
| GitHub | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N |
| OSV | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | ckan | >=2.10.0, <2.10.9 >=2.11.0, <2.11.4 |
2.10.9 2.11.4 |
Affected products
- ckan ckan
Classification
- Weakness
-
- CWE-384 Session Fixation
References
-
github.com
/ckan/ckan/commit/c2fe437f88be850a6edf7a32470772428819fab5
web
-
github.com
/ckan/ckan/security/advisories/GHSA-2hvh-cw5c-8q8q
web
-
nvd.nist.gov
/vuln/detail/CVE-2025-64100
advisory
-
github.com
/ckan/ckan
package
-
pypi.org
/project/ckan
package
-
github.com
/advisories/GHSA-2hvh-cw5c-8q8q
advisory
Sources
- CVE List CVE-2025-64100
- GitHub Advisory GHSA-2hvh-cw5c-8q8q
- NVD CVE-2025-64100
- OSV PYSEC-2026-1246
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.